Adjustable connection



Nov. 22, 1927.

'r. A. ENGLISH ADJUSTABLE CONNECTION Filed March 15, 1923 Patented Nov.22, 192.7.

'r-HoMAssAl. ENGLISH; or nnNssnLAnRgNnw' Yoan.,

anansTABpE coNIjcgrIoN.

Appnation fiiednarcn 15,1923. serial No', 625,330.

invention relatesg to connections and rt ularly` to hinged' connections,:applieto` VariousartiCleS, which permit the s" connected thereby tol beeasily Aadjus yd ,in various,angularrelations to each otherand' which\"'ill"'1etai1rthe adjusted relation under the stresses arising in the.ordinary usesffork'w-hich the article is intended.:

. My invention is'an imjprovementon the generali type of connectiondisclosed" in"V Letters PatentNo', 1,416,526 issued to me onk May 16,19227 and: is' `A particularly adapted toA the usestherein illustrated.

The objectsv Otniy'inventiOn are'to provide ay deviceg` of thisgeneralcharacter in whichfthe surfaces, ,which move in contact withfeachotherjunder considerable pressure, 'are perfectly smooth andof large eX-tent, thus minimizing. wear, and in' which these; surfaces are,maintained in movable contact by a permanentlyadjusted resilient meansadapted to take up frictional wear@ These and other objects andadvantages will appear more fully as the description is read inconnection with the Aaccompanying drawings in which- Fig. 1 is aperspective view of the device embodying my improvement.

Fig. 2 is a cross sectional view.

Fig. 3 is a perspective view of my as applied to a cleaning implement.

Fig. d is a perspective view illustrating how one part of my device maybe constructed to engage a handle or other round member` to beconnected.

Fig. 5 is a perspective view illustrating how one part of my device maybe constructed to apply to a flat surface.

Fig. 6 is a perspective view illustrating the application of my deviceto a windshield.

Fig. 7 is an enlarged, fragmentary, section showing the coaction of therivet and the resilient means to prevent'relative movement. v

Similar numerals refer to similar parts.

My device comprises two metallic members,.1 and 2, preferably in theform of circular disks and of substantially the same size, which aresecured together by a rivet or other suitable means, 3, passing axiallythrough the disks. Concentrically disposed in relation to the rivet, 3,is a seriesof equally spaced projections, 4, in the member, 2, which areadapted to interit with a simdevice vthe, member, v1.

ilarlydisposed series ofdepressions, 5, in

These projections and depressionsy may, of course,- be formed5infdifferent waysf depending tol some eXtentLupo'n the material 'ofJwhich?? the members, 1' and 2,-. members be'r cast, the projections 1and de'- pressions may be readilycast therein I tind'i-however, that aVvery satisfactoryconnection formally-uses may 'be'v cheaply vv'madearrelcomposed. `For eXa1nple,-fif these by stainpingf the membersfl andv2,2'jfrom'f- 'sire .Vnfietal andat the same time, embossing theVprojections'A and depressionsfthereinl Ratei-rinato Fig. 2 1twillfbel'notedlthat 'l'helieads"oi the rivet do not 'contact-i with themembers, 1 and 2, but-are i spaced 'fthere- ,from by4 the" resilient*washers, f6. ',The washers, 6, are of metalpossessing-suitableresilientcharacteristics, and areformed with an Y outer annular portion,7 adapted ito rest `fiatY against the members', 1 and 2, a'ndan'embossed center portion, 81, whichlengag'es,

at its center, the head of the rivet, 3, passing therethrough. In orderthat the washers, 6, may be rendered resilient, they are slotted alongtwo `diameters at right angles to each other, as yshown at 9, so as toseparate the embossed central portion into n four equal quadrantalportions. By using washers ofthis type, it will be evident that bysetting up the rivet'heads so as to produce some initial pressure uponthe flexible quadrantal portions, the members, 1- and 2, will be heldfirmly together in any adjusted relationand yet the washers will besuficiently resilient topermit the slight sepa-y ration of the membersnecessary to effect a change in adjustment. l

In eiiecting an adjustment there will be no movement of the rivet headsupon the Washers because, in the process of riveting, portions, 13, fromthe heads will be forced into the slots, 9, as shown in Fig. 7, whichwill make this relation fixed. It will therefore be obvious that theflat, annular portions of the washers will move upon the outsides of themembers, 1 and 2, and, as the surfaces in moving contact are vofsubstantial area, the wear will be minimized.

The members, 1' and 2, have ta-ngs or shanks, and 11, respectively,which may be of any form for attaching my connection to various objects,and to illustrate this, I have shown in Fig. 4`how a tang may beconstructed to engage a round member such as a stati or handle, and inFig. 5, how it soy may be constructed to attach to a flat surface atright angles to the plane of the connection.

In use, for example, as applied -to the brush or mop shown in Fig. 3,the staff or handle, l2, may be set at any angle desired in relation tothe surface over which the implement is lo be used. The initialcompression of the washers will be suflicient to hold the projections,4, in engagement with the depressions, 5, thus lining' the angularrelation of the staff and brush, and, whenever it is desired to changethis angle, it may be easily' done by holding, the brush firmly againstthe floor andsimultaneously.exerting a little additional strength on thestali' so that the members, l4 and 2, will move relative to each otheruntil the desired angle is found. AIn effecting this adjustment theprojections, 4, will rise out of the depressions,

'j 5, with which they have been immediately engaged, and the springwashers will be compressed and Yforce the projections into consecutiveengagement with the depressions as they are reached in turning themembers,

1 and l2, in relation to each other. f

What I claim is:

l. An adjustable connection comprising two disks in intimate contactmounted upon a common axial shaft, a series of projections on one diskconcentric with said shaft and adapted to interiit with a like series ofde pressions on the other disk, and separate resilient means at each endof said shaft havtional contact, the combination with a pivot pinconnecting said disks, of vtwo resilient washerseach having` an-on-resilient porti. of substantial area in moving Contact wit a disk,Vand a resilient portion in fixed relation to and compressed against anupset end of the pivot pin. Y i

3. An adjustable connectioncomprising substantially coextensive disks, acommon axial shaft therefonand a resilient means at each end of saidshaft for holding saiddisks in intimate contact; said means being`provided with an annular, non-resilient portion of substantial area in-Contact with a disk and a resilient center portion, integral therewith,comprising a plurality of spaced,

convex sectors adapted to receive portions of the shaft therebetween toprev-ent relative movement of said shaft and saidv means, whereby wearis prevented.

THOMAS A. E Neiisii.y

